package com.cfpamf.ms.insur.pay.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * spring factory
 *
 * @author zhangnayi
 **/
@Component
public class SpringFactoryUtil implements ApplicationContextAware {

    /**
     * Spring应用上下文环境
     */
    private static ApplicationContext applicationContext;

    /**
     * 获取对象
     *
     * @param clazz
     * @return Object
     * @throws BeansException
     */
    public static <T> T getBean(Class<T> clazz) throws BeansException {
        return applicationContext.getBean(clazz);
    }

    /**
     * 获取对象
     *
     * @param alias
     * @return Object
     * @throws BeansException
     */
    public static <T> T getBean(String alias, Class<T> clazz) throws BeansException {
        return applicationContext.getBean(alias, clazz);
    }

    /**
     * 实现ApplicationContextAware接口的回调方法。设置上下文环境
     *
     * @param applicationContext
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        SpringFactoryUtil.applicationContext = applicationContext;
    }
}
